Bracket #21 — the answers

The five questions from October 20, 2026, with their answers, the track each ran on, and the bracket that would have scored 90 on it.

The answers

Question by question

A question scores 100 minus the bracket’s width as a percentage of the track, if the answer is inside it, and nothing if it is outside. The tenth-of-the-track bracket below is the one a confident player was aiming for.

1. How fast does a three-toed sloth move along the ground? 0.15 miles per hour — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 0.11 to 0.21 is a tenth of the track and scores 90; the whole track scores 0.
2. How many people live in New York City, the five boroughs? 8.3M — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 5.2M to 13M is a tenth of the track and scores 90; the whole track scores 0.
3. What year did the 19th Amendment give American women the vote? 1,920 — near the middle of its track. A bracket from 1,909 to 1,931 is a tenth of the track and scores 90; the whole track scores 0.
4. What is the diameter of the Sun? 865,000 miles — near the middle of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 550,000 to 1.4M is a tenth of the track and scores 90; the whole track scores 0.
5. How many inches are in 63 yards? 2,268 — in the upper third of its track (a logarithmic track, so a tenth of it is a tenth of the powers of ten it spans). A bracket from 1,700 to 3,100 is a tenth of the track and scores 90; the whole track scores 0.

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About Bracket

Bracket is Noggin’s estimation puzzle, on the second shelf: five questions a day with a number for an answer, bracketed rather than named, outside the daily line-up. How to play Bracket, or play today’s.